Are you using Windows XP?
If so, please, go to folder \windows\minidump and send the newest (recent) .mdmp files for analysis.
Better if you can compress (zip) them and add some information about the BSOD and the link for this thread. :wink:

Send an email to any of these addresses:
vlk (at) avast.com
rypacek (at) asw.cz

Or upload to the any of these anonymous ftp servers:
ftp://ftp.asw.cz/incoming
ftp://www2.asw.cz/incoming

Eddy’s links for minidump issues:
http://www.jsiinc.com/SUBJ/tip4900/rh4981.htm
http://www.microsoft.com/whdc/devtools/debugging/default.mspx